Effect of magnesium addition to PtSnNa/ZSM-5 on the catalytic properties in the dehydrogenation of propane / Linyang Bai in Industrial & engineering chemistry research, Vol. 48 N° 22 (Novembre 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 22 (Novembre 2009) . - pp. 9885–9891 Titre : Effect of magnesium addition to PtSnNa/ZSM-5 on the catalytic properties in the dehydrogenation of propane Type de document : texte imprimé Auteurs : Linyang Bai, Auteur ; Yuming Zhou, Auteur ; Yiwei Zhang, Auteur Année de publication : 2010 Article en page(s) : pp. 9885–9891 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Magnesium addition Propane dehydrogenation Résumé : The effect of Mg addition to PtSnNa/ZSM-5 on the catalytic properties in propane dehydrogenation was investigated. The catalysts were characterized by using different techniques: XRD, BET, TEM, NH3-TPD, XPS, TPO, and TG-DTA. Results indicate that the presence of magnesium not only modifies the acid function and the structure of metallic phase but also diminishes carbon deposition on the catalyst. Among the catalysts studied, the PtSnNaMg(0.5%)/ZSM-5 exhibits the best performance in terms of propane conversion and stability. The high catalytic performance may be due to the strong interaction between Pt and Sn. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900534m [article] Effect of magnesium addition to PtSnNa/ZSM-5 on the catalytic properties in the dehydrogenation of propane [texte imprimé] / Linyang Bai, Auteur ; Yuming Zhou, Auteur ; Yiwei Zhang, Auteur . - 2010 . - pp. 9885–9891. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 22 (Novembre 2009) . - pp. 9885–9891 Mots-clés : Magnesium addition Propane dehydrogenation Résumé : The effect of Mg addition to PtSnNa/ZSM-5 on the catalytic properties in propane dehydrogenation was investigated. The catalysts were characterized by using different techniques: XRD, BET, TEM, NH3-TPD, XPS, TPO, and TG-DTA. Results indicate that the presence of magnesium not only modifies the acid function and the structure of metallic phase but also diminishes carbon deposition on the catalyst. Among the catalysts studied, the PtSnNaMg(0.5%)/ZSM-5 exhibits the best performance in terms of propane conversion and stability. The high catalytic performance may be due to the strong interaction between Pt and Sn. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900534m

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Influence of the competitive adsorbates on the catalytic properties of PtSnNaMg/ZSM-5 catalysts for propane dehydrogenation / Linyang Bai in Industrial & engineering chemistry research, Vol. 50 N° 8 (Avril 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4345–4350 Titre : Influence of the competitive adsorbates on the catalytic properties of PtSnNaMg/ZSM-5 catalysts for propane dehydrogenation Type de document : texte imprimé Auteurs : Linyang Bai, Auteur ; Yuming Zhou, Auteur ; Yiwei Zhang, Auteur Année de publication : 2011 Article en page(s) : pp. 4345–4350 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Catalytic properties Résumé : This paper is aimed at studying the influence of the competitive adsorbates (HCl, lactic acid, and citric acid) on the structural and catalytic properties of PtSnNaMg/ZSM-5 catalysts for propane dehydrogenation. N2 adsorption, X-ray diffraction, inductively coupled plasma, NH3 temperature-programmed desorption, H2 temperature-programmed reduction and transmission electron microscopy were applied for characterization of the prepared catalysts. The catalytic performance was tested in a microreactor. The obtained results indicate that the catalyst prepared in HCl medium exhibited the best catalytic activity and stability due to relatively better metal distribution on the support and/or the strong interactions between Pt and Sn as well as between them and the support. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1018639 [article] Influence of the competitive adsorbates on the catalytic properties of PtSnNaMg/ZSM-5 catalysts for propane dehydrogenation [texte imprimé] / Linyang Bai, Auteur ; Yuming Zhou, Auteur ; Yiwei Zhang, Auteur . - 2011 . - pp. 4345–4350. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4345–4350 Mots-clés : Catalytic properties Résumé : This paper is aimed at studying the influence of the competitive adsorbates (HCl, lactic acid, and citric acid) on the structural and catalytic properties of PtSnNaMg/ZSM-5 catalysts for propane dehydrogenation. N2 adsorption, X-ray diffraction, inductively coupled plasma, NH3 temperature-programmed desorption, H2 temperature-programmed reduction and transmission electron microscopy were applied for characterization of the prepared catalysts. The catalytic performance was tested in a microreactor. The obtained results indicate that the catalyst prepared in HCl medium exhibited the best catalytic activity and stability due to relatively better metal distribution on the support and/or the strong interactions between Pt and Sn as well as between them and the support. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1018639

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